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Todd Bascombe
Full Stack JavaScript Techdegree Student 11,133 Pointsneed help
where did I go wrong
# The dictionary will look something like:
# {'Andrew Chalkley': ['jQuery Basics', 'Node.js Basics'],
# 'Kenneth Love': ['Python Basics', 'Python Collections']}
#
# Each key will be a Teacher and the value will be a list of courses.
#
# Your code goes below here.
def num_teachers(teachers = None):
numTeachers = int(len(teachers.keys()))
return numTeachers
def num_courses(teachers = None):
numcourse = sum(teachers.values())
return numcourse
1 Answer
Chris Freeman
Treehouse Moderator 68,453 PointsThe argument teachers is a dictionary. The length of each dict value needs to be summed together and the total returned.
The direct use of sum() might work if a list comprehension was used to create a list of the value lengths, but that's beyond this stage of the course.
Post back if you need more help. Good luck!!